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Finding the Fourth Proportional to 16,661.75, 22,993.46 and 9,108.51

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Solution

The fourth proportional to 16,661.75, 22,993.46 and 9,108.51 is: 12,569.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,661.75 : 22,993.46 = 9,108.51 : x
  2. Step 2: Convert to fraction form
    16,661.75/22,993.46 = 9,108.51/x
  3. Step 3: Cross multiply
    16,661.75x = 22,993.46 × 9,108.51
  4. Step 4: Simplify right side
    16,661.75x = 209,436,211.60
  5. Step 5: Solve for x
    x = 209,436,211.60/16,661.75
  6. Step 6: Final answer
    x = 12,569.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.